10/13/2012 - Muratov - Janovsky, Russia, 1968

Okay, after looking through 13 pages, I couldn't find where this question has been asked/answered. Can't black get out of the forced mate by playing 2... Ke8 3. Rxd5 (threatening 3... cxd5 4. Qe7#), and then 3... Rxc8 4. Rxh5 Bxh5 5. Bxh5? Yes, black trades a knight, bishop, and queen for a knight and rook. But they're still in the game.

i thought the solution was interesting but I really dont understand the logic behind some of first moves. Is the solution really absolutely the best moves or are some of these puzzles more demonstrative/interesting than tactical?